Create both structural bricks and fuel briquettes comprised of natural materials
Examine the wide scope of potential natural materials
Work with the prickly pear group to use prickly pear juice as a natural binder
Test for strength, water solubility, flammability, etc.
Learn more about natural materials
Lab Documentation & Photos:
Tuesday 1/29/2013
In our initial lab, we learned the shop and sought out the hydraulic press with which we would compress our bricks. Once we had idea of what our size limits were, we developed a plan for how to compress the materials, including what sort of brick mold we would use. We discovered some unused steel framing material that would work perfectly, so during this lab we measured, cut, ground and tested the mold for future brick compression. See photos below:
Cutting steel with a dull blade and no coolant on the horizontal band saw.
Finishing the cut.
Precision cut required for the insert.
Grinding down the excess steel.
The photo below shows the 12-ton hydraulic press we used for the reminder of the quarter. We covered the brick mold with towels in order to keep the mud from shooting across the shop, then proceeded to compress our first brick.
Testing the hydraulic press.
Success! First (muddy) brick has been compressed! Now to test different materials.
Tuesday 2/5/2013
In this lab, we finally had a working compressor, a brick mold, and materials to work with. We started with corn husks, a major source of agricultural waste, as our primary material in the creation of bricks. Our initial brick contained corn husk that was cut into long strips, and was mixed with Prickly Pear juice as a potential binding agent. This brick held together fairly well, but there was obviously room for improvement. One of the failures here was that the material wanted to spring back to its original shape due to elastic properties, which slowly broke the brick apart. See photos below:
Sorting of materials.
Mixing with the Prickly Pear as a potential binding agent.
Compressing the hell out of the materials.
Trial and error. In order to effectively make a brick that will maintain uniform shape, we found that rotting and shredding the materials helped dramatically.
Tuesday 2/12/13
During this lab, we took time to set aside materials for future labs in an organized manner. We placed plant material in water to soak and rot for a week, as well as prepared more plant material for the day's compression. We decided to chop the material into smaller pieces to see if it would hold together better. We also drilled holes in the bottom plate to allow moisture to be removed from the compression process, which would theoretically keep the together more easily. Finally, we were given multiple types of Prickly Pear juice from the group working with the plant, and discussed ideas on what should be tested once we had rotten plant material. See photos below:
Prickly Pear group provided us with a few variations of the juice which we will test with different materials to see if it works as a binding agent.
Prepping the base plate for drilling.
Tuesday 2/19/13
In this lab, we put a combination of ideas into play. First, we brought a Magic Bullet to shred the plant material into tiny pieces. Second, we drilled additional holes into the sides of the brick mold to help with moisture removal. Third, we used the rotten plant material to test the elasticity of the plant. The theory is this: plants such as corn have lignin bonds within them which help provide strength to the structure. These lignin bonds can be broken down by rotting the plant material in water for several days, which in turn causes the plant to lose structural strength and therefore makes it easier to work with when compressing the plant into a certain formation. Finally, we decided to work with the variety of Prickly Pear juice to test the binding potential. See photos below:
The Magic Bullet.
Additional holes drilled successfully.
Rotten plant material.
A solid brick after shredding the plant material with the Magic Bullet.
Tuesday 2/26/13
During this lab, we started experimenting with a number of new materials in hopes it would help strengthen and solidify our bricks. We also tested the durability and flammability of bricks that we had already compressed, in hopes to improve our tactics.
New & Improved Bricks
Finally, we began to produce something that fairly resembled bricks. We tried numerous combinations, all of which consist of a few new techniques:
Shredding the material
Rotting the material
Introducing sawdust, clay, and paper (newspaper)
End Reflection
Failures:
Restrictions to conduct briquette experiments
Only focused on corn husks and not other materials
Prickly pear juice didn't work as a binder
Did not calculate precise measurements (ratios, pressure)
Successes:
Learned about natural materials and their properties
Began to produce studier bricks
Developed relationships (good group chemistry, collaborated with the prickly pear group and other groups)
Had FUN
Passing the Torch (Next steps for future groups):
Continue exploring successful materials and combinations
Experiment with precise measurements and ratios
Conduct official tests for strength and other properties
Experiment with fuel briquettes and burning the material
Find more natural binders
Group Dynamics and Biographies: David Hupp
Sophomore
Studying Architecture
Interested in Sustainable Design
Riley Jones
Graduate Student
Became interested in this class after traveling to Africa and seeing first hand the issues of implementing appropriate technology.
Jason Wilson
Senior
Business
Interested in Appropriate Technology through a Sustainable Environments minor.
Kevin Kusunose
Senior
Landscape Architecture
Interested in sustainable development.
Simo Alberti
Graduate Student
Mechanical Engineering
I am interested in appropriate technology and working with Pete on the Scheffler solar concentrator.
Check out this video of Pete and Amy Smith making fuel briquettes out of agricultural waste!
http://youtu.be/LqI63IEg3M
Original Goals
Lab Documentation & Photos:
Tuesday 1/29/2013
In our initial lab, we learned the shop and sought out the hydraulic press with which we would compress our bricks. Once we had idea of what our size limits were, we developed a plan for how to compress the materials, including what sort of brick mold we would use. We discovered some unused steel framing material that would work perfectly, so during this lab we measured, cut, ground and tested the mold for future brick compression. See photos below:
Cutting steel with a dull blade and no coolant on the horizontal band saw.
Finishing the cut.
Precision cut required for the insert.
Grinding down the excess steel.
The photo below shows the 12-ton hydraulic press we used for the reminder of the quarter. We covered the brick mold with towels in order to keep the mud from shooting across the shop, then proceeded to compress our first brick.
Testing the hydraulic press.
Success! First (muddy) brick has been compressed! Now to test different materials.
Tuesday 2/5/2013
In this lab, we finally had a working compressor, a brick mold, and materials to work with. We started with corn husks, a major source of agricultural waste, as our primary material in the creation of bricks. Our initial brick contained corn husk that was cut into long strips, and was mixed with Prickly Pear juice as a potential binding agent. This brick held together fairly well, but there was obviously room for improvement. One of the failures here was that the material wanted to spring back to its original shape due to elastic properties, which slowly broke the brick apart. See photos below:
Sorting of materials.
Mixing with the Prickly Pear as a potential binding agent.
Compressing the hell out of the materials.
Trial and error. In order to effectively make a brick that will maintain uniform shape, we found that rotting and shredding the materials helped dramatically.
Tuesday 2/12/13
During this lab, we took time to set aside materials for future labs in an organized manner. We placed plant material in water to soak and rot for a week, as well as prepared more plant material for the day's compression. We decided to chop the material into smaller pieces to see if it would hold together better. We also drilled holes in the bottom plate to allow moisture to be removed from the compression process, which would theoretically keep the together more easily. Finally, we were given multiple types of Prickly Pear juice from the group working with the plant, and discussed ideas on what should be tested once we had rotten plant material. See photos below:
Prickly Pear group provided us with a few variations of the juice which we will test with different materials to see if it works as a binding agent.
Prepping the base plate for drilling.
Tuesday 2/19/13
In this lab, we put a combination of ideas into play. First, we brought a Magic Bullet to shred the plant material into tiny pieces. Second, we drilled additional holes into the sides of the brick mold to help with moisture removal. Third, we used the rotten plant material to test the elasticity of the plant. The theory is this: plants such as corn have lignin bonds within them which help provide strength to the structure. These lignin bonds can be broken down by rotting the plant material in water for several days, which in turn causes the plant to lose structural strength and therefore makes it easier to work with when compressing the plant into a certain formation. Finally, we decided to work with the variety of Prickly Pear juice to test the binding potential. See photos below:
The Magic Bullet.
Additional holes drilled successfully.
Rotten plant material.
A solid brick after shredding the plant material with the Magic Bullet.
Tuesday 2/26/13
During this lab, we started experimenting with a number of new materials in hopes it would help strengthen and solidify our bricks. We also tested the durability and flammability of bricks that we had already compressed, in hopes to improve our tactics.
New & Improved Bricks
Finally, we began to produce something that fairly resembled bricks. We tried numerous combinations, all of which consist of a few new techniques:End Reflection
Failures:
Successes:
Passing the Torch (Next steps for future groups):
Group Dynamics and Biographies:
David Hupp
Riley Jones
Jason Wilson
Kevin Kusunose
Simo Alberti
Helpful Links
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